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Old 08-08-2014, 07:59 PM   #10 (permalink)
06 H3
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Join Date: Nov 2010
Member # 175478
Location: Santa Clarita, Ca
Posts: 831
Im doing a custom crossmember. Too late to go back now...Cut off the stock crossmember mounts on the frame.

2x4x3/16 is the main portion. 1x4 is the short piece that is connected to the stock t case mount.

Here it is



Plan is to continue to add 1/4 plate with holes and then weld to the ends of the piece in the picture above then make that removable and use more 2x4x3/16 to mount to the side of the frame rail. Then add some gussets between the frame rail and fixed mount. Then it will allow me to put the lowers anywhere I want and the uppers are limited by the new crossmember but it will still make the links much longer.

Problem is driveshaft clearance in the picture above I notched it, it does clear but barely. I want some more legroom can I continue to cut the back side like I did to the front then plate it all in and be ok from a strength standpoint?
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06 Hummer H3- 5.3/4l60e/factory H3 4:1. 3 link front, spring over rear. custom D70 front/Eaton HO72 40in STT pros
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